Bilingual rent guarantee
When a guarantor abroad backs a tenant — they must understand what they sign, in their own language.
In ~5 minutes
to a signature-ready PDF
€14.90
one-off per document · blank template €9.90 · preview without sign-up
Instead of several hundred €
for a lawyer plus certified translation
For which country / governing law?
You can still change country and languages later in the wizard.
Why DUOLEXX instead of just asking an AI?
An AI writes text fast. That doesn't make it legally sound, bilingual and ready to sign. That's exactly the difference.
Grounded in local law
Every document follows the law of the chosen country — researched clauses, not a generic template from the web.
Authoritative language + translation
The binding version in the legal language, alongside an understandable translation. A chat rarely delivers both, soundly, at once.
Verifiable signature
Two-party signature with a SHA-256 integrity proof — provable that both signed the same wording.
Finished, not just text
PDF, signature, archive and share link in one flow — an AI chat only hands back raw text.
Choose a template
Choose a region and document type — every template follows local law.
Answer questions
Simple questions instead of legalese — your document builds live in two languages.
Unlock the PDF
Pay once and you're done: download, archive and share your PDF.
Spread the word
Share DUOLEXX with people who need it right now.